Sensors for the lab environment

Sensors for peripheral signal recordings in the lab environment

Brain Products has developed and offers a large variety of sensors. All of them are manufactured to meet the highest safety standards and are powered directly from the electrically isolated amplifiers.

3D Acceleration Sensor

The 3D Accelaration Sensor captures movements in three dimensions. Its primary application is to detect and record movement/acceleration of the extremities. It consists of the sensor (2 sensors with cables of different lengths are supplied) and a pre-amplifier.

For an MR-usable version of this sensor click here.

Blood Pulse Sensor

The Blood Pulse Sensor records the pulse wave by sending IR light through the finger and recording the light emitted by the oxygenated haemoglobin with a photo diode at the opposite side. It consists of a finger-clip sensor as well as an amplifier box and connects to the EEG amplifier via an auxiliary port.

Force Sensor

The Force Sensor is based on the piezoresistive effect and can be used for a variety of pressure- and force-related measurements. With a wide range of measurable force, it can be used to detect movements such as finger tapping, heel strikes during gait cycle, or even jumps.

GSR Sensor

The GSR Sensor measures skin conductance (SC) – a parameter for emotional and cognitive states, stress and pain. It uses the exosomatic recording principle with direct current (DC). This means that a constant voltage of 0.5 V is applied in order to acquire the skin conductance. The sensor consists of 2 surface electrodes and a GSR module, that converts the electric SC to a voltage recorded by a bipolar amplifier input. A GSR-specific gel (Edalyt) is also supplied.

For an MR-usable version of this sensor click here.

Photo Sensor

The Photo Sensor provides information on the brightness of the screen, i.e. the signal delivered by the sensor indicates when the screen turns brighter or darker. Used in combination with StimTrak, a trigger is generated when the amount of light is higher than the (customizable) threshold, which means that the exact onset of any visual stimulus can be marked. It can easily be attached to any screen with double-sided adhesive washers and connects to the auxiliary input of the amplifier.

Respiration Belt

The Respiration Belt measures the thoracic or abdominal respiratory movements and converts them into electrical voltage. It consists of an elastic belt with a pouch, a pneumatic sensor, a transducer and a cable for the connection to the amplifiers’ auxiliary ports.

For an MR-usable version of this sensor click here.

BIP2 AUX adapter

The BIP2 AUX adapter is an analogue differential DC amplifier that amplifies bioelectrical signals with a bipolar montage (ExG signals, like EOG, ECG or EMG) to optimize them for the auxiliary inputs of our amplifiers or their extensions (e.g. actiCHamp (Plus), Sensor and Trigger Extension for LiveAmp, BrainAmp ExG AUX Box) and turn them into even more versatile research tools.